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Puzzles (3 cohencoins award for each match):

Puzzle vvX1P: 860

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/44NFck6a"] [Date "2025.10.08"] [White "Ioana"] [Black "SaViNa"] [Result "0-1"] [UTCDate "2025.10.08"] [UTCTime "20:27:43"] [WhiteElo "841"] [BlackElo "1215"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C23"] [Opening "Bishop's Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Bc4?! { (0.58 → -0.05) Inaccuracy. Nf3 was best. } { C23 Bishop's Opening } (2. Nf3) 2... Nc6 3. Qg4?? { (0.44 → -8.44) Blunder. Nf3 was best. } (3. Nf3 Bc5 4. O-O Nf6 5. d3 d6 6. c3 h6 7. Re1 a6 8. Bb3 a5 9. d4 Bb6) 3... Nf6?? { (-8.44 → -2.96) Blunder. d5 was best. } (3... d5 4. exd5 Bxg4 5. dxc6 b5 6. Be2 Nf6 7. Bxg4 Nxg4 8. Nh3 Bc5 9. d3 O-O 10. O-O) 4. Qd1 Nxe4 5. d3 Nd6?! { (-2.67 → -2.04) Inaccuracy. Nf6 was best. } (5... Nf6 6. Nf3 d5 7. Bb3 Bg4 8. O-O Bd6 9. Bg5 Bxf3 10. Qxf3 Nd4 11. Qd1 c6 12. c3) 6. d4?? { (-2.04 → -8.60) Blunder. Bb3 was best. } (6. Bb3 Nf5) 6... Nxc4 7. b3 Nb6 8. c4 Nxd4 9. Nd2 Bb4 10. a3 Bxd2+ 11. Kxd2 Qg5+ 12. Ke1 Qxg2 13. Ne2?! { (-14.38 → Mate in 1) Checkmate is now unavoidable. Bb2 was best. } (13. Bb2 Qxh1 14. Qg4 Nxb3 15. Qxg7 Qe4+ 16. Ne2 Rf8 17. Qxe5+ Qxe5 18. Bxe5 Nxa1 19. Bxa1 Nxc4) 13... Qxh1+?! { (Mate in 1 → -16.06) Lost forced checkmate sequence. Nf3# was best. } (13... Nf3#) 14. Ng1 Qxg1+ 15. Kd2 Qxd1+ 16. Kxd1 Nxb3 17. Rb1 Nxc1 18. Rxc1 O-O 19. Kd2 d6 20. Ke3 c6 21. c5 Nd5+ 22. Ke4 dxc5 23. Kxe5 Re8+ 24. Kd6 c4 25. Kc5 b6+ 26. Kxc4 Re2 27. Kd3?! { (-21.16 → Mate in 7) Checkmate is now unavoidable. Kb3 was best. } (27. Kb3 Be6) 27... Rxf2 28. Kd4 Rxh2?! { (Mate in 11 → -28.62) Lost forced checkmate sequence. Bb7 was best. } (28... Bb7 29. Rc2 Rxc2 30. Kd3 Rxh2 31. Kd4 Rd2+ 32. Ke5 Re8+ 33. Kd6 Rd8+ 34. Ke5 f6+ 35. Ke4) 29. Ke5 Ra2 30. a4 Rxa4 31. Kd6 h5?! { (Mate in 5 → -30.56) Lost forced checkmate sequence. Bb7 was best. } (31... Bb7 32. Rc4 Rxc4 33. Ke5 f6+ 34. Ke6 Rd8 35. Kf5 Bc8#) 32. Re1 g5 33. Re8+ Kg7 34. Kxc6?! { (-78.99 → Mate in 10) Checkmate is now unavoidable. Rd8 was best. } (34. Rd8 f6 35. Re8 h4 36. Rd8 h3 37. Re8 Bb7 38. Rxa8 Bxa8 39. Kd7 h2 40. Kc8 h1=Q) 34... g4?! { (Mate in 10 → -26.12) Lost forced checkmate sequence. Bb7+ was best. } (34... Bb7+ 35. Kxb7 Rxe8 36. Kc6 Nc3 37. Kd6 Kf8 38. Kd7 h4 39. Kd6 h3 40. Kc6 h2 41. Kd6) 35. Kd6 Nc7 36. Kxc7 g3?! { (Mate in 9 → -74.75) Lost forced checkmate sequence. Rd4 was best. } (36... Rd4 37. Rxc8 Rc4+ 38. Kb7 Raxc8 39. Kxa7 g3 40. Kb7 g2 41. Ka6 g1=Q 42. Ka7 R4c7+ 43. Ka6) 37. Kd8?! { (-74.75 → Mate in 6) Checkmate is now unavoidable. Re1 was best. } (37. Re1 Rc4+) 37... Bb7+ 38. Ke7 Rxe8+ 39. Kxe8 g2 40. Kd8 g1=R 41. Ke8 Rd4 42. Ke7 Re1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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